Knowledge of derivational affixes makes an important contribution to second language learners' success when reading. Yet while the effects of some learner variables (L2 proficiency, L1 background) have been investigated, there has been little research addressing the effects of varying characteristics of affixes on their acquisition. The goal of…

This study investigated the relative contributions of English morphological and vocabulary knowledge to second language (L2) reading comprehension among 100 adult Japanese English as a foreign language (EFL) learners. The study also investigated the extent to which the roles of morphological and vocabulary knowledge in L2 reading comprehension…

It is assumed by many teachers and materials writers that it is important to teach at all levels the forms and meanings of derivational prefixes and suffixes, as an important aid to learning new words in English. However, corpus evidence suggests that knowledge of the meanings of such components occurring within the most common 5,000 words in…

Research into vocabulary knowledge often differentiates between breadth (how many words a person knows) and depth (how well the words are known). Both theoretical categories are essential for understanding language learners' lexical development, but how the different aspects of vocabulary knowledge interconnect has not received the same attention…

Vulnerability of morphosyntactic production, including grammatical aspect, has been identified in at least some children with autism spectrum disorder (ASD) exposed to typologically different languages. However, Tovar et al. (2015) found strengths in comprehending grammatical aspect in English-exposed children with ASD, suggesting that the…

This study investigated how word and child characteristics affect children's ability to learn the meanings of novel words. Participants were fourth- and fifth-graders representing native English speakers (NE) and bilingual learners with fluent English proficiency (FEP) and designated English Learners (EL). Students were taught the meanings of a…

This study investigated the learnability of multiple word knowledge aspects and the relationship between the word knowledge aspects. A total of 261 Thai high school students were measured on receptive and productive word knowledge aspects: word parts, the form-meaning link, and collocations. The current findings indicated that word parts are…

Given that words from the academic layer of English typically carry bound roots ("min" in "diminish") rather than free-standing base words ("small" in "smaller"), there is a need to understand the factors that make bound roots more or less accessible for morphological problem-solving unfamiliar words. We…

The present scenario fact that the English is a language of modern technological and scientific developments, text is a primary tool for students to gain the knowledge in writing skills. However, most male Saudi students show minimum efficient in L2 writing skill and do not have sufficient competence for writing the authentic English passages. To…

This study investigated the effects of a combined contextual and morphemic analysis strategy to increase prediction and analysis of science vocabulary words by three high school (9th--10th grade) English language learners with reading disabilities. A multiple baseline across participants design was used. Students analyzed science words using the…

A major reading-achievement gap exists between English language learners and English-only students. In order for ELLs to experience school success, they must achieve English language proficiency. This article presents why vocabulary acquisition plays the most vital role in ELLs' learning of the English language. Factors include the severity and…